CN211737163U - Subway station support system for receiving double-line shield in advance - Google Patents
Subway station support system for receiving double-line shield in advance Download PDFInfo
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- CN211737163U CN211737163U CN201922236667.2U CN201922236667U CN211737163U CN 211737163 U CN211737163 U CN 211737163U CN 201922236667 U CN201922236667 U CN 201922236667U CN 211737163 U CN211737163 U CN 211737163U
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Abstract
The utility model discloses a subway station supporting system for receiving double-line shield in advance, which comprises a first supporting structure (1), a second supporting structure, a third supporting structure and a temporary upright post, wherein the first supporting structure comprises a supporting structure main body (11), a hoisting port supporting beam (12) and a hoisting port connecting beam (13); two shield hoisting ports (14) are formed among the crown beam at the shield receiving end, the hoisting port connecting beam and the hoisting port supporting beam; two middle plate shield hoisting ports are reserved on the middle plate of the station main body structure and are located under the two shield hoisting ports, and a double-line shield hoisting-out channel is formed in the station main body structure and is used for a double-line shield machine to hoist out of the station main body structure. The utility model is used for subway station support system that double-line shield structure received in advance can provide the shield structure after the construction of station major structure medium plate is accomplished and receive and go out the condition in well, accelerates construction period on the basis of ensureing construction quality, reduces construction cost.
Description
Technical Field
The utility model relates to a subway station construction structures especially relates to a subway station supports system that is used for double-line shield to construct receiving in advance.
Background
In recent years, the development of urban rail transit construction across the country is as if bamboo shoots were in the spring after rain, and the development of urban rail transit construction becomes a new wave in the current infrastructure construction field. The common construction method of subway station engineering is open cut and smooth method, the interval engineering adopts shield method, the station engineering and the interval engineering have construction interfaces which need cross construction, the interval construction is generally carried out after the main structure of the station is completed, and when the construction period of the station and the interval engineering is short, the construction period pressure is large, and the difficulty is high, the station is difficult to ensure to provide double-line shield receiving according to the period.
According to the conventional station structural design, the enclosure structure of the station is in a form of a support pile and an inner support, a standard subway station is generally an underground 2-layer, and a shield hoisting port is designed in the structural region of a middle plate and a top plate at the large and small mileage ends of the station and is used as a passage port for a shield machine to hoist and lower a well or go out of the well. At present, the subway station is 2 layers of box frame construction in underground usually, and station main part foundation ditch design three support systems, supports through interim stand between the three support systems and connects, the construction of the station bottom plate of being convenient for, medium plate, roof, side wall.
In a conventional construction method, when a station main structure is to provide a receiving condition of a shield machine, work to be performed is: 1. and finishing the construction of the station main body structure top plate at the shield receiving end. 2. And (3) completely removing the inner support structure within the range of the shield hoisting port of the main structure of the station. However, when the target construction period for providing the shield receiving condition by the main structure of the station is short, the station construction must adopt high-strength rush work measures, the progress for accelerating the roof construction and removing the support structure in the range of the shield hoisting port may increase safety risks, the construction cost may increase, the construction quality is uncontrollable, and the construction of the construction period node cannot be ensured after the rush work.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a subway station supports system that is used for double-line shield to construct to receive in advance can provide the shield after the construction of station major structure medium plate is accomplished and receive and go out the condition in well, accelerates construction period on the basis of ensureing construction quality, reduces construction cost.
A second object of the utility model is to provide a construction method that is used for the subway station support system that double-line shield constructs to receive in advance, can alternately rush to man-hour in station engineering and interval engineering and satisfy the requirement that the station realized double-line shield structure to receive in advance according to the phase, reduce time limit for a project pressure and the construction degree of difficulty, ensure the smooth construction of engineering, provide reference for subway construction engineering.
The utility model discloses a realize like this:
a subway station support system for receiving a double-line shield in advance comprises a first support structure, a second support structure, a third support structure and temporary stand columns, wherein the first support structure, the second support structure and the third support structure are arranged in parallel from top to bottom through the temporary stand columns to form the support system;
the first supporting structure comprises a supporting structure main body, a hoisting port supporting beam and a hoisting port connecting beam; the support structure main body is a rectangular frame structure formed by connecting a plurality of support beams, the support beams are arranged in a non-hoisting passage area of the rectangular frame structure at intervals, and the support structure main body is fixedly connected with the crown beam of the station main body structure; the hoisting port supporting beam is arranged in the supporting structure main body and is fixedly connected with the supporting beam of the supporting structure main body, and the hoisting port supporting beam is arranged in parallel with the shield receiving end of the station main body structure; the plurality of hoisting port connecting beams are respectively connected between one side of the hoisting port supporting beam and a crown beam at the shield receiving end of the station main body structure at intervals, and two shield hoisting ports are formed among the crown beam at the shield receiving end, the hoisting port connecting beam and the hoisting port supporting beam; the other side of the hoisting port supporting beam is fixedly connected with the supporting beam of the supporting structure main body and the crown beam of the station main body structure through a plurality of hoisting port connecting beams; two middle plate shield hoisting ports are reserved on the middle plate of the station main body structure, the two middle plate shield hoisting ports are respectively located under the two shield hoisting ports, a double-line shield hoisting-out channel is formed in the station main body structure, and the double-line shield machine is hoisted out of the station main body structure through the double-line shield hoisting-out channel.
The length and the width of the shield hoisting port can cover the length and the width of the shield machine, and the length and the width of the middle plate shield hoisting port can cover the length and the width of the shield machine.
The central line of the shield hoisting port and the middle shield hoisting port along the length direction and the central line of the shield machine are positioned in the same vertical plane.
And a connecting beam is arranged between the hoisting opening supporting beam and the supporting beam of the supporting structure main body.
And a connecting beam is arranged between the hoisting opening connecting beam and the supporting beam of the supporting structure main body.
And connecting beams are arranged among the supporting beams of the supporting structure main body.
The supporting structure main body, the lifting opening supporting beam and the lifting opening connecting beam are positioned in the same plane.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses a bearing structure can provide the shield after the construction of station major structure medium plate is accomplished and construct the condition that receives in advance and go out the well, need not to construct station burden one deck side wall and roof, also need not to demolish first bearing structure, reduces occuping to the time limit for a project, can advance the time limit for a project node more than 30 days, ensures the smooth implementation of total time limit for a project node.
2. The utility model discloses a bearing structure reserves shield structure hoist and mount mouth for left line and right line shield structure machine on first bearing structure to the medium plate shield that reserves on the cooperation medium plate constructs the hoist and mount mouth and forms the double-line shield and hangs out the passageway, hangs out the construction when providing left line and right line shield structure machine, provides the condition that the double-line shield constructs to receive in advance after the medium plate construction is accomplished and provides the guarantee.
3. The utility model discloses a construction method only need accomplish shield structure receiving area's station major structure bottom plate and medium plate, can realize the time limit for a project node that the double-line shield structure received in advance, has reduced station major structure's construction task volume simultaneously, has effectively alleviateed the time limit for a project pressure of station structure main part construction.
Drawings
FIG. 1 is a plan view of the first support structure in the subway station support system for receiving in advance by the double-line shield of the present invention;
fig. 2 is a flow chart of the utility model discloses a construction method that is used for subway station support system that double-line shield constructs receiving in advance.
In the figure, 1 is a first supporting structure, 11 is a supporting structure main body, 111 is a supporting beam, 12 is a lifting opening supporting beam, 13 is a lifting opening connecting beam, 14 is a shield lifting opening, 15 is a connecting beam, and 2 is a station main body structure.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to the attached drawing 1, a subway station support system for receiving double-line shield in advance comprises a first support structure 1, a second support structure, a third support structure and temporary columns, wherein the first support structure 1, the second support structure and the third support structure are arranged in parallel from top to bottom through the temporary columns to form a support system which is used as a support system of an underground 2-layer subway station main body structure.
The first supporting structure 1 comprises a supporting structure main body 11, a hoisting port supporting beam 12 and a hoisting port connecting beam 13; the supporting structure main body 11 is a rectangular frame structure formed by connecting a plurality of supporting beams 111, the supporting beams 111 are arranged in a non-hoisting channel area of the rectangular frame structure at intervals, the supporting structure main body 11 is fixedly connected with the crown beam of the station main body structure 2, and the supporting structure main body 11 and the crown beam can be connected, fixed and poured simultaneously when steel bars of the supporting structure main body 11 and the crown beam are bound, so that reliable connection strength is achieved; the lifting port supporting beam 12 is arranged in the supporting structure main body 11 and is fixedly connected with the supporting beam 111 of the supporting structure main body 11, and can be fixedly connected and poured simultaneously when reinforcing steel bars of the lifting port supporting beam 12 and the supporting beam 111 are bound so as to achieve reliable connection strength, and the lifting port supporting beam 12 is arranged in parallel with the shield receiving end of the station main body structure 2; a plurality of hoisting port connecting beams 13 are respectively connected between one side of the hoisting port supporting beam 12 and a crown beam at the shield receiving end of the station main body structure 2 at intervals, and two shield hoisting ports 14 are formed among the crown beam at the shield receiving end, the hoisting port connecting beam 13 and the hoisting port supporting beam 12; the other side of the hoisting port supporting beam 12 is fixedly connected with the supporting beam 111 of the supporting structure main body 11 and the crown beam of the station main body structure 2 through a plurality of hoisting port connecting beams 13, and the hoisting port supporting beam 12, the hoisting port connecting beam 13 and the reinforcing steel bars of the supporting beam 111 can be fixedly connected and poured at the same time when being bound, so that reliable connecting strength is achieved; two middle plate shield hoisting ports are reserved on the middle plate of the station main body structure 2 and are respectively positioned under the two shield hoisting ports 14, a double-line shield hoisting channel is formed in the station main body structure 2, and the double-line shield machine is hoisted out of the station main body structure 2 through the double-line shield hoisting channel, so that the receiving of the double-line shield machine is realized.
The length and the width of the shield hoisting port 14 can cover the length and the width of the shield machine, the length and the width of the middle plate shield hoisting port can cover the length and the width of the shield machine, namely the width of the shield hoisting port 14 and the width of the middle plate shield hoisting port are both larger than the width of the shield machine, the length of the shield hoisting port 14 and the length of the middle plate shield hoisting port are both larger than the length of the shield machine, and the shield machine can be smoothly hoisted out.
The central line of the shield hoisting port 14 and the middle shield hoisting port along the length direction and the central line of the shield machine are positioned in the same vertical plane, so that the coaxiality of the hoisting track of the shield machine and the hoisting channel is ensured, and the safe hoisting of the shield machine is ensured.
The connecting beam 15 is arranged between the hoisting port supporting beam 12 and the supporting beam 111 of the supporting structure body 11, so that the reliability of the hoisting port supporting beam 12 can be improved.
The connecting beam 15 is arranged between the hoisting port connecting beam 13 and the plurality of supporting beams 111 of the supporting structure main body 11, so that the reliability of the hoisting port connecting beam 13 can be improved.
The connecting beam 15 is arranged between the supporting beams 111 of the supporting structure main body 11, so that the reliability of the supporting structure main body 11 can be improved.
The supporting structure body 11, the hoisting port supporting beam 12 and the hoisting port connecting beam 13 are positioned in the same plane, so that the construction and the supporting performance of the first supporting structure 1 are ensured.
Referring to fig. 2, a construction method for a subway station support system for receiving a double-line shield in advance includes the following steps:
step 1: the construction of the first supporting structure 1 of the main structure of the shield receiving end station is completed, two shield hoisting ports 14 are formed in the hoisting passage area of the first supporting structure 1 and used for hoisting the shield machine out, the first supporting structure 1 is maintained, and the fact that the first supporting structure 1 reaches the design strength is ensured.
The construction steps of the first supporting structure 1 are as follows:
step 1.1: and excavating the foundation pit earthwork to a designated elevation below the first supporting structure 1 and tamping the foundation pit earthwork. Preferably, the foundation pit earthwork is excavated to a position 0.1m below the bottom surface elevation of the first supporting structure 1 and tamped.
Step 1.2: and chiseling floating slurry on the top of the underground wall.
Step 1.3: and (3) measuring coordinates of intersection points of each support beam and the crown beam of the first support structure 1.
Step 1.4: and pouring a cushion layer, and laying an isolation rubber mat.
Step 1.5: and (3) binding the supporting structure main body 11 of the crown beam and the first supporting structure 1, a hoisting port supporting beam 12 and a hoisting port connecting beam 13, and reserving two shield hoisting ports 14 at the shield receiving end for hoisting the shield machine.
Step 1.6: and constructing templates of the supporting structure main body 11, the hoisting port supporting beam 12 and the hoisting port connecting beam 13 of the first supporting structure 1, and pouring concrete.
Step 1.7: and (3) removing the template after the concrete of the first supporting structure 1 reaches the design strength.
Step 2: after the first supporting structure 1 reaches 100% of the design strength, excavation of the foundation pit earthwork under the first supporting structure 1 is carried out.
And step 3: and excavating the foundation pit earthwork to the second supporting structure, constructing the second supporting structure, and maintaining the second supporting structure.
And 4, step 4: and after the second supporting structure reaches 100% of the design strength, performing foundation pit earthwork excavation under the second supporting structure.
And 5: and excavating the earthwork of the foundation pit to the surface of the foundation trench, constructing a third supporting structure, and maintaining the third supporting structure.
Step 6: and (4) constructing a station main structure bottom plate of the shield receiving end, and removing the third supporting structure after the bottom plate reaches 100% of the design strength.
And 7: two layers of side walls and middle plates are arranged on the station main body structure of the construction shield receiving end, two middle plate shield hoisting ports are reserved in a hoisting passage area of the middle plates, and the second support structure is dismantled after the middle plates reach 100% of design strength.
And 8: and receiving the shield machine in a double-line manner, and hoisting the shield machine out of the well through a double-line shield hoisting channel formed by two middle plate shield hoisting ports reserved on the middle plate and two shield hoisting ports 14 on the first supporting structure 1.
Example (b):
in the construction process of a subway project, a subway station is of an underground 2-layer box type frame structure, a main foundation pit of the station is provided with three supporting systems, the start time of the project is seriously delayed due to delay of early work, and double lines of a left line shield machine and a right line shield machine need to be received simultaneously in advance. The plane width of the shield machine used in the subway engineering is 6.28m, the clearance size of a shield hoisting port of the left line shield machine reserved in the middle plate construction is 7.1m by 13.5m through comprehensive consideration, and the clearance size of a shield hoisting port 14 of the left line shield machine reserved through a hoisting port supporting frame 12 in the first supporting structure 1 construction is 7.1m by 13.5m and used for hoisting the left line shield machine out; the clearance size of the shield hoisting port of the right shield machine reserved during middle plate construction is 7.8m 13.5m, and the clearance size of the shield hoisting port 14 of the right shield machine reserved through the hoisting port supporting frame 12 during construction of the first supporting structure 1 is 7.8m 13.5m and used for hoisting the right shield machine.
Because the coverage range of the plane width of the shield machine is uniformly arranged towards both sides along the central line of the shield machine (namely the tunneling direction of the shield machine), the plane position and the width of the shield hoisting port are uniformly arranged towards both sides along the central line of the shield machine, so that the shield machine can be safely hoisted out along the hoisting channel without the problems of inclination, collision and the like.
The construction steps are as follows:
step 1: the construction of the first supporting structure 1 of the station main body structure of the shield receiving end is completed, two shield hoisting ports 14 are formed in the hoisting passage area of the first supporting structure 1, and the first supporting structure 1 is maintained.
The construction steps of the first supporting structure 1 are as follows:
step 1.1: and excavating the foundation pit earthwork to 0.1m below the elevation of the bottom surface of the first supporting structure 1, excavating by using a back-hoe excavator, loading, and transporting the loaded earthwork by using a dump truck. And (5) after the excavation reaches the designated elevation, leveling and tamping by a manual matching machine.
Step 1.2: chiseling floating slurry on the top of the underground diaphragm wall: marking a '1.000 control line' for chiseling off the ground connecting wall pile head on a construction site, and manually chiseling off the pile head to a designed elevation at the bottom of the crown beam. After the pile head is broken, the exposed reinforcing steel bars on the upper part are corrected, the position of the reinforcing steel bars is ensured to be correct, and reinforcing or strengthening is performed on the damaged reinforcing steel bars.
Step 1.3: coordinates of the intersection point of each supporting beam and the crown beam of the first supporting structure 1 are displayed according to a coordinate provided by a design drawing.
Step 1.4: and pouring a cushion layer, and laying an isolation rubber mat.
And taking the control line of the applied support axis as a reference, compacting the base surfaces of the crown beam and the support area by frog ramming, sealing the side die of the cushion layer by using square timber, widening the pouring width of the cushion layer of the crown beam and the first support structure 1 by 20cm than that of each side of the dimension side line of the station main body structure 2, and pouring C15 concrete with the thickness of 5cm after the template is installed to be used as the bottom die of the crown beam or the first support structure 1.
After the cushion concrete is finally set, a layer of plastic rubber mat is fully paved on the concrete surface layer, and the plastic rubber mat is fixed by using a pneumatic nailing gun according to the distance of 1m and is used as a concrete isolation measure of the first supporting structure 1 and the cushion, so that the effective and rapid cleaning of the crown beam and the cushion concrete of the first supporting structure 1 in the later period is ensured.
Step 1.5: and binding the crown beam and the reinforcing steel bars of the supporting structure main body 11, the hoisting port supporting beam 12 and the hoisting port connecting beam 13 of the first supporting structure 1, and reserving a shield hoisting port 14 of a left line shield machine and a shield hoisting port 14 of a right line shield machine of 7.1m by 13.5m at the shield receiving end.
When the first supporting structure 1 is constructed, the arrangement forms (i.e. spacing distance, parallel or cross arrangement, transverse or oblique arrangement, etc.) of the supporting beam 111, the lifting opening supporting beam 12 and the lifting opening connecting beam 13 can be set and adjusted according to the design requirements of the station main body structure 2, so as to meet the supporting strength requirements of the first supporting structure 1. Through design calculation, the cross-sectional dimensions of the lifting opening supporting beam 12 and the lifting opening supporting beam 111 are 1.0 x 0.8m, the cross-sectional dimension of the lifting opening connecting beam 13 is 1.2 x 0.8m, the structural main reinforcement adopts HRB 400-grade steel bars, and the stirrup adopts HPB 235-grade steel bars.
The adopted reinforcing steel bars are intensively processed in a processing field strictly according to design drawings, and the processed reinforcing steel bars are classified and stacked tidily according to specifications, lengths and numbers, and attention is paid to rain prevention and rust prevention. The steel bar raw material is subjected to type inspection before use and can be used after meeting the requirements.
The steel bars can be installed by adopting a conventional binding method, and the steel bars are connected by adopting mechanical connection or welding. The general sequence is that the crown beam is installed firstly, and then the support is installed. Firstly, longitudinal steel bars of a steel reinforcement cage are put in place, then 1 steel bar bracket is placed at intervals of about 4-6 meters on the longitudinal steel bars, the steel bar brackets are erected by adopting fastener type steel pipe scaffolds, upper and lower through long steel bars are erected in place, and then stirrups are sleeved in the steel bars. During construction, accurate positioning of the steel bars must be ensured, positioning lines of the stirrups are laid on the longitudinal main reinforcements according to the space requirements of design drawings, and the steel bars are bound according to the positioning lines.
The main reinforcement is lengthened by adopting welding or straight thread sleeve connection, the length of a welding seam is not less than 10d when welding is adopted, and the joint of the same section cannot exceed 50%. And each section of the crown beam steel bar reserves the lap joint length for the construction of the lower section of the crown beam, and the lap joint length is staggered by not less than 1 m. And after the reinforcement is bound, embedding the foundation pit retaining wall reinforcements as required.
Step 1.6: and constructing templates of the supporting structure main body 11, the hoisting port supporting beam 12 and the hoisting port connecting beam 13 of the first supporting structure 1, and pouring concrete.
The method can be assembled by adopting wood templates, and the template reinforcement adopts 50 x 100 wood purlin matched with phi 48mm scaffold steel pipes to form a reinforcement system. And cleaning and brushing the release agent before the template is erected to ensure that the surface of the template is clean and smooth. In order to prevent slurry leakage during concrete pouring, cement mortar is used for repairing the outside of the template at the bottom end of the inner side of the side mold, and a white iron sheet is used for sealing nails when the abutted seam of the template is more than or equal to 10 mm.
The strength grade of concrete adopted by pouring is C30, sundries and garbage in the template are cleaned before pouring, the template is watered to be wet, and no water is accumulated in the template.
The concrete is vibrated by adopting an inserted vibrating rod, the concrete is quickly inserted and slowly pulled out during vibration, insertion points are uniformly arranged, and the concrete is sequentially vibrated so as to avoid leakage vibration and ensure that the vibration is dense. When pouring, a continuous vibration method of 'plane segmentation, inclined plane layering, thin layer vibration, natural flowing, progressive and one-time in-place' is adopted. The pouring thickness of each layer is 30cm, and the moving distance of the vibrating rod is not more than 1.5 times of the action radius of the vibrating rod when the vibrating rod vibrates. In the vibrating process, the distance between the vibrating rod and the template is kept to be 5-10 cm, the steel bar and the steel plate embedded part are prevented from being collided, and vibration cannot be directly and indirectly applied through the steel bar. And vibrating the upper concrete layer, wherein a vibrating rod is inserted into the lower concrete layer by 5-10 cm until the surface of the concrete is grouted and no large amount of bubbles are generated.
And secondary plastering and smoothing are adopted on the surface of the concrete so as to prevent and reduce cracks on the surface of the concrete.
Step 1.7: and (5) after the concrete strength of the first supporting structure 1 is greater than 2.5Mpa, removing the template. Tools such as a steel chisel, a crowbar and the like are used when the template is dismantled, knocking by a hammer is forbidden, and cracks on the concrete surface are prevented. The removed form must be cleaned and trimmed in time, coated with a release agent, and stored properly.
The first supporting structure 1 is maintained in a natural maintenance mode, after concrete sets, watering is immediately performed for maintenance, the outer surface of the concrete is covered and wrapped with plastic cloth, uninterrupted watering maintenance is kept, the surface of the concrete is guaranteed to be wet, and the maintenance period is not less than 7 days.
Step 2: after the first supporting structure 1 reaches 100% of the design strength, excavation of the foundation pit earthwork under the first supporting structure 1 is carried out.
And step 3: and excavating the foundation pit earthwork to the second supporting structure, constructing the second supporting structure, and maintaining the second supporting structure. The second support structure may adopt the same structure and construction method as the first support structure 1, and will not be described herein.
And 4, step 4: and after the second supporting structure reaches 100% of the design strength, performing foundation pit earthwork excavation under the second supporting structure.
And 5: and excavating the earthwork of the foundation pit to the surface of the foundation trench, constructing a third supporting structure, and maintaining the third supporting structure. The third support structure may adopt the same structure and construction method as the first support structure 1, and will not be described herein.
Step 6: and (4) constructing a station main structure bottom plate of the shield receiving end, and removing the third supporting structure after the bottom plate reaches 100% of the design strength.
And 7: two layers of side walls and middle plates are arranged on the station main body structure of the construction shield receiving end, two middle plate shield hoisting ports are reserved in a hoisting passage area of the middle plates, and the second support structure is dismantled after the middle plates reach 100% of design strength.
And 8: and receiving the shield machine in a double-line manner, and hoisting the shield machine out of the well through a double-line shield hoisting channel formed by two middle plate shield hoisting ports reserved on the middle plate and two shield hoisting ports 14 on the first supporting structure 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. A subway station support system for receiving a double-line shield in advance is characterized in that a first support structure (1), a second support structure and a third support structure are arranged in parallel from top to bottom through temporary stand columns to form the support system;
the method is characterized in that: the first supporting structure (1) comprises a supporting structure main body (11), a hoisting port supporting beam (12) and a hoisting port connecting beam (13); the supporting structure main body (11) is a rectangular frame structure formed by connecting a plurality of supporting beams (111), the plurality of supporting beams (111) are arranged in a non-hoisting passage area of the rectangular frame structure at intervals, and the supporting structure main body (11) is fixedly connected with a crown beam of the station main body structure (2); the hoisting port supporting beam (12) is arranged in the supporting structure main body (11) and is fixedly connected with the supporting beam (111) of the supporting structure main body (11), and the hoisting port supporting beam (12) is arranged in parallel with the shield receiving end of the station main body structure (2); a plurality of hoisting port connecting beams (13) are respectively connected between one side of the hoisting port supporting beam (12) and a crown beam at the shield receiving end of the station main body structure (2) at intervals, and two shield hoisting ports (14) are formed among the crown beam at the shield receiving end, the hoisting port connecting beam (13) and the hoisting port supporting beam (12); the other side of the hoisting port supporting beam (12) is fixedly connected with a supporting beam (111) of the supporting structure main body (11) and a crown beam of the station main body structure (2) through a plurality of hoisting port connecting beams (13); two middle plate shield hoisting ports are reserved on the middle plate of the station main body structure (2), the two middle plate shield hoisting ports are respectively located under the two shield hoisting ports (14), a double-line shield hoisting-out channel is formed in the station main body structure (2), and the double-line shield machine is hoisted out of the station main body structure (2) through the double-line shield hoisting-out channel.
2. A subway station support system for a double-line shield early receiving as claimed in claim 1, wherein: the length and the width of the shield hoisting port (14) can cover the length and the width of the shield machine, and the length and the width of the middle plate shield hoisting port can cover the length and the width of the shield machine.
3. A subway station support system for two-wire shield early receiving according to claim 1 or 2, characterized in that: the central line of the shield hoisting port (14) and the middle shield hoisting port along the length direction and the central line of the shield machine are positioned in the same vertical plane.
4. A subway station support system for a double-line shield early receiving as claimed in claim 1, wherein: and a connecting beam (15) is arranged between the hoisting opening supporting beam (12) and the supporting beam (111) of the supporting structure body (11).
5. A subway station support system for a double-line shield early receiving as claimed in claim 1, wherein: and a connecting beam (15) is arranged between the hoisting opening connecting beam (13) and the supporting beam (111) of the supporting structure main body (11).
6. A subway station support system for a double-line shield early receiving as claimed in claim 1, wherein: and connecting beams (15) are arranged among the supporting beams (111) of the supporting structure main body (11).
7. A subway station support system for a double-line shield early receiving as claimed in claim 1, wherein: the supporting structure main body (11), the hoisting port supporting beam (12) and the hoisting port connecting beam (13) are positioned in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236667.2U CN211737163U (en) | 2019-12-13 | 2019-12-13 | Subway station support system for receiving double-line shield in advance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922236667.2U CN211737163U (en) | 2019-12-13 | 2019-12-13 | Subway station support system for receiving double-line shield in advance |
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| CN211737163U true CN211737163U (en) | 2020-10-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467689A (en) * | 2022-11-01 | 2022-12-13 | 中铁隧道局集团路桥工程有限公司 | Side wall steel bar protection layer and construction method thereof |
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2019
- 2019-12-13 CN CN201922236667.2U patent/CN211737163U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467689A (en) * | 2022-11-01 | 2022-12-13 | 中铁隧道局集团路桥工程有限公司 | Side wall steel bar protection layer and construction method thereof |
| CN115467689B (en) * | 2022-11-01 | 2023-01-20 | 中铁隧道局集团路桥工程有限公司 | Side wall steel bar protection layer and construction method thereof |
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